Loose-leaf binder



Dec. 20, 1927.

R. EBURNE LOOSE LEAF BINDER Filed May 27, 1927 Patented Dec. 20, 1927.

UNITED STATES PATENT OFFICE.

ROBERT EBURNE, or SoMERvIIILE, MASSACHUSETTS, AS IGNOR To THE HOUSE GOM- rAN'Y, Inc, or BOSTON, MASSACHUSETTS, A oo'RroRA'TIoN or MASSACHUSETTS.

LOOSE-LEAF BINDER.

Application filed May 27,

This invention relates to albums, binders and the like having a back, especially the loose leaf type, used for the purpose of holdving photographs, papers, cards, etc.,and with respect to more specific features to albums or binders with a back so designed that it maybe expanded as papers are added, or contracted as they are removed.

This invention has for one of its objects to provide an inexpensive and durable album or binder with a back, having greater capacity than the ordinary binder and capable of expansion or contraction as may be desired, the expansion of the back being attained by means of a flexible flap which forms the back, being an extension piece of one of the covers of the binder, the loose end of which back is inserted into a pocket, formed in the other cover, to a greater or lesser depth as the contents of the binder are subtracted from or added to. This also gives a finished appearance to the back.

Another object of my invention is to provide a means for keeping the pocket closed by enclosing a strip of metal or other rigid material adjacent the mouth of the pocket and which also serves to strengthen it. It is sometimes desirable to make this metal piece from spring material having a set ourvature whereby it has a tendency particularly at the center thereof, to compel a closure of the pocket 4 and hold the flexible flap forming the back tightly enclosed therein.

Another feature of my invention is to provide a hinged cover protector piece between the front cover and the hinged leaf-holding portion when tubular stems for holding the leaves are used which have flanges at one end resting against the upper part of the leaf holding portion and thereby coming in direct contact with the inside of the front cover with resultant friction. This protector is preferably made of the same size and generally similar to the hinged leaf-holding portion, but preferably without holes punched in it. This cover protector piece also improves the general appearance of the album when it is open.

In the accompanying drawings wherein is represented one of various possible features of the invention Figure 1 is a perspective view of a binder constructed in accordance with my invention drawings, 1

1927. Serial No. 194,729.

resting upon its front cover for the purpose of more clearly showing the construction of the back.

Figure 2 is a sectional view through the back'of the bindershown in Figure 1. I

Figure 3 is an elevation of the metal stay hereinafter referred to.

Referring now more particularly to the indicates one of the covers of the binder or album, comprising an inner face 2 and an outer face 3 so assembled as to form a pocket 4 for the reception of a flap 8, an extension of the other or front cover 5. The inner face 2 of said cover 1 at one end thereof is continued to provide a hinge'portion 10 composed preferably of stiffened material through which holes 11 may be punched for the reception of telescopic posts 12 with flanges 12 at their outside ends throughwhich passes the binding cord 13 or other fastening means to hold the leaves 14: in bound condition. The other cover 5 has a hinged portion 9 projecting for a short way over the leaves composed preferably of stiffened material through which the holes 11 may be punched for reception of the telescopic posts 12 or other fastening means to hold the leaves 14 in bound condition.v

In the present instance the cover 5 extends beyond the hinged portion 9 to provide a back'portion 8 which is adapted for entrance into the pocket 4 formed'in the cover 1. It will be understood that these covers may be made of either comparatively stifi or flexible material, while the back portion 8 is preferably of flexible material so that it may be readily manipulated to enter the pocket 4 regardless of the condition of expansion of the binder, up to its particular limits. This extension flap or back portion 8 enters into the pocket 1 to a greater or lesser extent according to the number and thickness of leaves or inserts between the covers.

To reinforce the mouth of the pocket 4: formed in the cover 1 and hold the extensible back 8 firmly in position, a Strip or bar 16, preferably of metal or other rigid ma-' the tendency is for the said bar 16, particularly at the center thereof, to compel a closure of the pocket 4 and exert friction upon the back flap 8 enclosed therein.

To protect the front cover 5 from the flanges or tops 12' of the binding posts 12, .l have provided in addition to hinged portion 9 a protective member 15 which is connected to said portion 9 and rests on it when the album is closed.

What I claim is 1. A device of the class described comprising two covers, each, of said covers having a hinged portion arranged to receive leaves between them, one vof the covers having a pocket, and'the other an extension flap to form a back by being inserted into said pocket to a depth according to the separation of the covers, means to secure leaves between said covers, and a bar enclosed adjacent the mouth of said pocket to reinforce the latter and keep the pocket closed,

2. A device of the class described comprising two covers, each of said covers having a hinged portion arranged to receive leaves between them, and means to secure said leaves, one of the covers having a pocket and the other an extension flap to form a back by inserting it into said pocket. to a depth according to the separation of the covers, and a bar of spring material having a set curvature enclosed adjacent the mouth of said pocket to reinforce it and compel its closure. 7

3. A device of the class described, comprising a cover provided with a hinged leafholding portion and a pocket and a second cover having a hinged leaf-holding portion and a extension thereof constituting a back, said extension being arranged to be inserted into said pocket to a depth corresponding with the thickness of the contents between the covers, means to secure the leaves tosaid hinged portions, and another hinged portion serving as a wear resistant between the sec-- ond cover and its hinged leafholding portion.

V 4. A device of the class described comprising a cover provided with a hinged leafholding portion and a pocket and second cover having a hinged leaf-holding portion and an extension thereof constituting a back, said extension being arranged to be inserted into said pocket to a depth corresponding with the thickness of the contents between the covers, a tubular stem having a flange at its upper .end extending through said hinged leaf holding portion of the second cover and a hinged portion located between said second cover and said flange to serve as a protector for the inside of said second cover. v, p 5. A loose-leaf binder comprising a front and a back cover, the front coverhaving a flexible portion forming a back which adjustably extends into alpocket formed in the back cover, paper-holding means comprising hinged portions connected to the inside of each cover, two hollow tubular posts telescopically engaged with each other and having flanges at their outside ends, extending through each of the holes in said hinged portions, and another hinged portion attached to the inside of the front cover serving as a protectoribetween said flanges and said front cover.

6. A device of the class described, comprising two covers, one of the covers having a pocket, and the other an extension flap to form a back by being inserted into said pocket to adepth according to the separation of the covers, and a bar enclosed adjacent the mouth of said pocket to reinforce the latter and keep the pocket closed.

ROBERT EBURNE. i I 

